Chore: Move most types from rrweb to @rrweb/types package (#1031)

* Chore: Add move most types from rrweb to @rrweb/types package

* Split off type imports

* Split off type import to its own line

* Get vite to generate type definitions

* Apply formatting changes

* noEmit not allowed in tsconfig, moved it to build step

* Align version of @rrweb/types with main rrweb package

Based on @mark-fenng's comments https://github.com/rrweb-io/rrweb/pull/1031/files#r1002298176

* Move up keywords

packages/rrweb-player/package.json

@@ -4,6 +4,7 @@
   "devDependencies": {
     "@rollup/plugin-commonjs": "^22.0.0",
     "@rollup/plugin-node-resolve": "^13.2.1",
+    "@rrweb/types": "^2.0.0-alpha.3",
     "@types/offscreencanvas": "^2019.6.4",
     "eslint-config-google": "^0.14.0",
     "eslint-plugin-svelte3": "^4.0.0",